ability to join a prexisting groupchat without being invited

[grey@…]

I can't seem to figure out how to join an AIM/OSCAR groupchat (possibly other protocols too, haven't tried) without being invited to it. I can create my own chats, and can join a prexisting chat I'm invited to fine, but I can't independently/autonomously join a groupchat. When I get diconnected I'll see something like this:

23:24 <@bitlbee> TOC - Error: Chat Error!: You have been disconnected from chat 
                 room !aol://2719:10-4-interpretivebreadstation.

But sadly, I can't /join aol://2719:10-4-interpretivebreadstation and have that work.

Am I missing something, or is this just not yet a feature?

Also, I noticed that in the in-program help help groupchats is a bit out of date mentioning only MSN and Y!M as being supported whereas now obviously AIM groupchats are supported, and even Jabber (from what I can tell).

Thanks in advance!

[wilmer]

The join_chat command exists in the current devel snapshots and works for at least AIM and Jabber.